Method of treating piston-packing.



USE & HIE, EDGEGOMB.

EATING PISTON J. LCRO METHOD OF TP PACKING;

- APPLICATION FILED PBB.3, 1910.

Patelzted 001;. 1, 1912 I'll-l;

lllllI 4 Rig. 5.

WITNESSES;

INVENTORS i/6:24AM ATTORNEY Washers which consists in soaking the blanks in a Warm compound containing soap, glycerin and graphite, then forming and trimming the some, and finally heating and compressing them in a confined space.

The process of preparing packing was] ers Which consists in soaking the blanks in a conniound containing soap, glycerin and graphite at a temperature of from 50 to 60* (1, then forming and, trimming the same, and finally heating andcompressing them in a confined space;

' 5. The process of preparing packing Washers which consists in impregnating porous blanks with a compound containing soap, z iyci-,.=.in and. graphite superposing a pluraiity of blanks and pressing the same in subscribed our names this 31st of Jan",

JOHN L. CRUUFJE. HENRY R. RDG-ECOMB. Witnesses:

T. D. LYNCH, B. B, HINES. 

